Notion - Rebuilds AI Model Routing and Moves to a Credit-Based Pricing System

Notion shipped a reworked AI system described as "agents, rebuilt to do more for less" — co-authored by co-founder Akshay Kotha. The update bundles smarter model routing, long-running agents, bring-your-own-AI (BYOAI) options, and a new credit-based pricing system, replacing whatever flat or seat-based AI allowance existed before.

LangChain - "The Art of Loop Engineering" Plus Browser Use for Long-Running Agents

LangChain published a framework it calls "loop engineering" — the idea that reliable agents require more than a good model; they need a carefully designed harness around the core agent loop, built for the specific task, with instrumentation at every level. 10 added browser use (agents can now operate on sites with no API and hand control back to a human for sign-in) and async subagents for background work.

Instinct - Group Chat Agents on iMessage and User-Set Spending Budgets

Noah Shinn, founder of Instinct, announced two product changes in quick succession. First: Instinct in group chats is now available to everyone on iMessage, with a specific trust design — the group gets its own shared Instinct instance that only knows what's in that chat, not any individual's personal accounts or data, and if it needs something from an individual it routes through that person's personal Instinct for confirmation first.